def

Returns a given default value for a variable, in case the variable is not defined anywhere.

@{ variable | def (value) }

Parameters

value

The default value to be returned in case variable is not defined.

Example

The following example demonstrates a standard use case for providing a default value. Let's assume a pagelist is sorted by the query string paramter sort. In case there is no query string parameters defined, the list is sorted by date desc (in other words: recent first).

<@ newPagelist {  
    sort: @{ ?sort | def ('date desc') }
} @>